Journal
CARBOHYDRATE POLYMERS
Volume 95, Issue 1, Pages 16-24Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.02.028
Keywords
Chitosan; 4-Cyano-4 '-pentylbiphenyl; Anchoring effect; Ordering coupling at interface; Radial configuration
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Funding
- European Social Fund - Cristofor I. Simionescu Postdoctoral Fellowship Programme [POSDRU/89/1.5/5/55216]
- Sectoral Operational Programme Human Resources Development
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The obtaining of bio-polymer dispersed liquid crystal (bio-PDLC) systems based on a chitosan polymer matrix is reported here for the first time. The new PDLC composites have been obtained by encapsulation of 4-cyano-4'-pentylbiphenyl (5CB) as low molecular weight liquid crystal into chitosan, and they have been characterized by polarized optical microscopy, differential scanning calorimetry, electron and transmission scanning microscopy, Raman and fluorescence spectroscopy. Submicrometric liquid crystalline droplets with uniform size distribution and density have been obtained for low liquid crystal content into the PDLCs. The droplets have a radial configuration being anchored into chitosan matrix by an interface ordering coupling phenomenon. (C) 2013 Elsevier Ltd. All rights reserved.
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